Jacquard head



y 31, 1932- c. A. r-"ssHER ET AL 1,361,339

JAC UARD HEAD Filed June 16, 1930 5 Sheets-Sheet 1 .laweni ors;

y 31, 1932- c. A. FISHER ET AL 1,361,339

JACQUARD HEAD Filed June 16, 1930 5 Sheets-Sheet 2 @arks flfals'ker andC'letaa' Jllfner,

y 31, 3 c. A. FISHER ET AL 1,861,339

JACQUARD HEAD Filed Jung 16, 1930 5 Sheets-Sheet 3 Inveniors:

M y 1, 1932. c. A. FISHER ET AL 1,861,339

JACQUARD HEAD Filed June 16, 1930- 5 Sheets-Sheet 4 a sw's Inventiars:

marks flll'z'aker and JJfeiner,

awa

pattern.

Patented May 31, 1932 UNITED STATES PATENT OFFICE CHARLES A. FISHER ANDCLET'US J. KETNER, F KANNAPOLIS, NORTH CAROLINA, AS- SIGNOBS T0 CANNONMILLS COMPANY, OF KANNAPOLIS, NORTH CAROLINA, A COR- PORATION OF NORTHCAROLINA JACQ'UARD HEAD Application filed June 16,

This invention relates to a new and improved jacquard head having as itsmain object to decrease the number and amount of pattern cards usuallynecessary in making a The improved jacquard head is de signed to bepositioned directly above the loom upon suitable arches supported by theloom frame and is positioned in such proximity to the loom that theoperator will have no difficulty in reaching any part thereof whilestanding 011 floor.

The machine shown is of the double lift single cylinder type, entirelyautomatic in operation, and is capable of being operated at a muchhigher speed than previous machines doing the sa-me type of work.

An important object of the invention is to provide a novel arrangementto move the standard jacquard cards one row at a time and also toprovide means whereby the distance between two connected cards may betraversed without slowing up the operation of the machine or interferingwith the operation.

It is a prime object to construct a jacquard head of exceedingly compactformation, being substantially less in heightv and depth than the usualjacquard heads now used. The reduction in the height of the machine ismainly accomplished through a new design for the hooks themselvestogether with modifications in the grate, and the reduction in width ofthe jacquard head is due mainly to a novel and improved card cylinderwhich is designed to furnish substantially a line contact with thesurface of the cards and which is also designed so as to have itscircumference and diameter proportional to the width of each card. Aguide cylinder for a the cards is positioned in such a location so as tocooperate with the exceedingly small size card cylinder to prevent anybending of the cards The needles in the improved jacquard head are alsodesigned so as to support two hooks without aid from the other needlesand hooks, as is done in the regular jacquard head.

It is an important object of the invention also to provide meanswhereby, due to the increased speed of the cylinder the feed of 1930.Serial No. 461,552.

the cards will be satisfactory at all times and the cards cannot jumpoff the cylinder pegs.

It is also designed to provide a special type of hook having a cut-outportion at the bottom thereof so as to allow suflicient room for themovement of the bottom of the hook while the top of the hook is held bya raised grifi' bar. This construction eliminates the necessity forproviding resiliency in the hooks themselves and also permits a muchshorter hook to be used in the machine.

With these and other objects in view as will become apparent from thedetailed description following, the invention consists in thecombination and arrangement of parts set forth below, claimed in theclaims and shown in the drawings, in which Figure 1 is a sideelevational View of the improved jacquard head,

Figure 2 is a partial cross-sectional View with certain parts shown inelevation, showing particularly the means employed for securing exactregistry of the card holes,

Figure 3 is a vertical cross-sectional view through the jacquard headlooking towards the cylinder advancing mechanism,

Figure 4 is a plan view,

Figure 5 is a side elevational View taken 'from the opposite side tothat shown in Figure 1,

Figure 6 is a plan view of the grate used,

Figure 7 is a cross-sectional view taken upon the line 7-7 in Figure 6,

Figure 8 is an elevational view of a hook used in the head, and

Figure 9 is a plan view of a needle.

In the drawings, in which similar reference characters are used todenote like parts, 10 indicates the frame generally, by which thevarious mechanisms are supported. The frame consists of two sideelements 11 and 12 which are joined together by brace rods I3. The legsof the side frames 11 and 12 are preferably provided with right angularlugs 14 which are adapted to be secured to suitable arches 15 supportedby the loom frame by the bolts 16.

Two griff knives 17 and 18 are provided which are secured at each end bya bolt and nut connection 19 tothe slide rods 20 sliding in bearings 21and 22 provided in the side frames 11 and 12.

The slide rods 20 are alternately raised and lowered carrying with themthe corresponding griff knife by means of a connection between thebell-crank lever 23 and the cam shaft of the loom, not shown. Thebell-crank 23 is fixedly connected at its elbow to a shaft 24 which inturn rotates in bearings provided in the bearing blocks 25 secured tothe side frames 12 and 11. The bearing blocks 25 are preferably securedto the side frames by one of the brace rods 13 passing through the sideframes. A lever 26 is pivotally connected to the upper end of thebell-crank 23 and the other end is pivotally connected to another lever27 which is adjustably fixed by a set screw or otherwise to a shaft 28extending between the side frames 11 and 12 at the upper part thereof.Any oscillation of the bell-crank 23 will be transmitted to the shaft28. At each end of the shaft 28 upon the outside of the side frames 11and 12 a walking beam 29 is fixedly secured by a set screw 30 orotherwise and each end of the walking beam 29 has pivotally securedthereto a lever 31. The other end of each of the levers 31 is securedpivot-ally to a block 32 adjustably fixed upon the rods 20. Theconstruction outlined permits the alternate raising and lowering of thegriff bars 17 and 18.

The side frames 11 and 12 are provided with outwardly directed aperturedlugs 33 which serve as bearings for the slide rods 34 which move thecard cylinder 35 towards and away from the needles 36 projecting throughthe needle board 37. One end of the slide rods 34 is preferablythreaded, not shown, and has secured thereto the cylinder standindicated generally at 38. An independent cylinder motion mechanism isemployed operated from the crank shaft of the loom and will now bedescribed. A block 39 is fixed adjustably to each of the slide rods 34between the bearings 33 and a lever 40 is pivotally secured to each ofthe blocks 39 while the other end of the lever 40 is pivotally securedto the upper end of a lever 41 which in turn is adjustably, fixedlysecured by a set screw 42, or by any other suitable means to a shaft 43which is also provided with bearings in the bearing blocks 25,previously described. The shaft 43 has fixedly secured thereto a lever45 which can be connected by any desired means to the crank shaft of theloom. An oscillating movement of the lever 45 will cause a reciprocatingmovement of the rods 34 carrying the card cylinder. The oscillatingmovement of the lever 45, due to the motion of the crank shaft of theloom, will cause a uniform movement of each end of the card cylinder dueto the fact that the shaft 43 has connected at each end thereof similarlevers 41, 40 and the blocks 39 secured to the slide rods 34.

The card cylinder 35 is integral and preferably made from metal having aseries of circular grooves therein into which the ends of the needles 36may project when permitted to do so by a perforation in the jacquardcard. Bearing blocks 46 are fixedly secured in the cylinder stands 38and the ends of the cylinder are located therein. At each end of thecylinder adjacent the groove portion the pegs 47 are provided forcooperating with the peg holes upon the cards for ad vaiicing the cardone row of holes upon each pic i.

Secured to one end of the cylinder fixedly between the bearing for thecylinder and the pegs is a ratchet wheel 48 of a peculiar construction.The ratchet wheel has eleven teeth 49 in the present instance which aresimilar in construction, while the twelfth tooth 50 is of considerablylarger size. The standard jacquard card is provided with twelve rows ofapertures and each card is laced to its neighboring card through thelace holes provided at both ends and at the center. The eleven teeth ofthe same size upon the ratchet wheel 48 will progressively advance thestandard jacquard card from row to row in said card, while the twelfthenlarged tooth will advance the cards from the one which has beenentirely exhausted to the next succeeding card. An actuating pawl 51 ispivoted to a rod 52 which is secured to the side frame 12 by the nut 53.

The movement of the cylinder towards and away from the needle board 37will cause the gravity actuated pawl 51 to advance the cylinder one stepupon each reciprocation of the cylinder. The advancing of the cardthrough means of the pegs upon the cylinder takes place upon themovement of the cylinder away from the needle board 37.

It is, of course, obvious that means must be provided for maintainingthe card in fixed position during the movement of the card towards theneedle board and needles. This means is provided at the other end of thecylinder from that upon which the ratchet above described is located andconsists of a disk 54 upon the surface of which are pro- .vided a seriesof semi-circular recesses 55 as shown more particularly in Figure 2.Twelve recesses are provided and two of these recesses are spaced agreater distance apart than the space between the others in order totake care of the transfer from the completed card to a new card. Thelarger space 56 between two recesses 55 corresponds with the largertooth 50 provided in the ratchet wheel above described. The disk 54 isfixedly adjustably secured to the cylinder. A roller element 57 isdesigned to cooperate with the recesses 55 so as to hold the cylinderwelding or any other desired means.

non-rotatable during its motion towards the needles, and the rollerelement 57 is carried by a lever 58 pivoted upon shaft 59.

The downwardly extending arm 60 secured to the cylinder stand 38 hassecured thereto an arm 61 extending at right angles to the arm 60, toone end of which is secured a tension spring 62. The other end of thetension spring 62 is secured to the arm 58 so as to constantly urge thearm 58 with the roller 57 towards the disk 54. A similar arm 60 extendsdownwardly from the cylinder stand 38 located adjacent the ratchetmechanism and the lower ends of the arms 60 are connected by the. abovementioned shaft 59. The shaft 59 has adjustably secured thereto atpoints in alignment with the pegs upon the cylinder two leaf springs 63.The leaf springs 63 are provided with slots 64 through which the pointsof the pegs extending be yond the thickness of the card may project.Upon reference to Figure 3 it can be seen that the cylinder is of suchsmall size that it provides merely a line contact against the cards atthe point at which the needles come in contact with the card. In orderto secure a proper feeding of the cards it is obvious that the cardsmust be fed towards the cylinder in a novel manner. For this purpose aguide cylinder 65 is provided located ap proximately fourteen inchesabove the cylinder in the position shown. The guide cylinder is mountedupon any desired construction so as to be freely rotatable. The motionof the guide cylinder 65 is therefore dependent upon the pull upon thecards by the pegs upon the cylinder.

The guide cylinder may be of any desired form, but is preferablyconstructed so as to have five faces, each of these faces being exactlythe width of the standard jacquard card. It is therefore apparent that,due to the cooperation of the guide cylinder with the peculiar type ofcard cylinder employed, the cards can be fed to the cylinder with outany bending of the cards taking place. The cards are shown at 66 and thelacing between the cards is illustrated diagrammatically at 67. Thesprings 63 will maintain the cards in close contact with the cardcylinder and the leaf springs 63 are of such length and shape as not tobend the card out of shape. The hooks 69 are of the shape shown moreparticularly in Figure 8 and comprise an upper curved end 70 and a lowerend 71 of substantially wide construction provided with the hook end 72adapted to rest upon the grate. The wide end 71 is cut away as at 73 andtapers down to the narrow portion 7 4 in which is an aperture 75 inwhich is secured the neck cord for the harness. The wire portion 76 ofthe hook can be secured to the wide portion 69 by The entire length ofthe hook is substantially less than the length of the standard hooksused in jacquard heads at the present time. In fact, the reduction inlength amounts to substantially twelve inches. Due to this considerabledecrease in the length of the hooks it is possible to greatly decreasethe entire height of the jacquard head.

Each of the legs of the side frames 11 and 12 is provided with inwardlyprojecting lugs 77 which form the supporting surface for the grate 78.The grate is of a peculiar structure, as shown more particularly inFigures 6 and 7, and comprises the supporting arms 79 at each cornerthereof in which are provided apertures 80. Bolts 81 with cooperatingnuts are passed through the slots and corresponding apertures providedin the lugs 77 in order to secure the grate in position. The grate 78 isprovided with a medial rib 82 and with another rib 83 located in advanceof the rib 82 upon which the hook portions 72 of the hooks are designedto rest when in their lowermost position. A shoulder portion 84 isprovided in back of the medial rib 82 and a series of slots 85 areformed in the grate between the ribs 82 and 83 and between the rib 82and shoulder 84. These slots are considerably longer than the usualslots provided because, due to the lack of resiliency in the hookconstruction itself, it is necessary to provide aconsiderably largerworking space whereby the hook can be shifted at the bottom when thehook is supported in upper position by one of the grifi knives. The cutaway portions 73 in the hooks themselves also aids in allowing of afurther tilting movement of the hooks when in raised position, and whenurged backwardly at the bottom by a needle, which in turn is forced backby the card upon the cylinder. There is therefore a distinct cooperationbetween the small size of the hooks and the larger slots provided in thegrate. In Figure 9 a plan view of a needle 36 is shown having aprojecting end 86 at the front thereof which projects through the needleboard 37 and at the rear end a cut away portion 87 of slightly largercross section is provided in order to accommodate the coil spring 88which constantly urges the needle forwardly. The coil spring 88 abutsagainst the shoulder 89 provided upon the needle'itself and against thespring board 90 extending between the two side frames 11 and 12 andsecured thereto in any desired way, preferably by bolts. Apertures areof course provided in the spring board 90 through which the ends 87 ofthe needles may project when forced backwardly by the card upon thecylinder. Each needle is provided with two apertures 91 in which theWire portions 7 6 of two hooks are located. Each needle supports twohooks without any aid from other needles and hooks. This is distinctfrom the regular its iio

jacquard head construction in which the needles support the adjacenthooks.

By the construction above outlined, as the cylinder presents a patterncard while one grifi' knife is at its lower position and the other griffknife is at its upper position to the needles, the hooks resting uponthe grate are pivoted at their upper end away from the lower griif knifewhile the hooks supported by the upper griff knife are pivoted at theirlower ends, due to the cut-out 7 3 and the larger size slot in thegrate, without the necessity of bending or placing the hooks undertension.

It is obvious that various changes and modifications may be made in theinvention above set forth, but it is understood that all such changesand modifications are claimed as will come within the spirit and scopeof the following claims.

I claim:

1. In a jacquard head for looms, a reciprocating cylindrical linecontact card cylinder having a diameter substantially less than thewidth of a standard card, means for rotating said cylinder the distancebetween adjacent horizontal holes upon a card upon each pick of the loomand means for advancing said cylinder after a card has been exhaustedfrom the last horizontal row of holes in the exhausted card to the firsthorizontal row of holes in a new card.

2. In a jacquard head for looms, a frame, a reciprocating cylindricalline contact card cylinder having a diameter substantially less than theWidth of a standard card, a ratchet wheel fixed to said cylinder, a pawlpivoted to said frame for advancing said cylinder the distance betweenadjacent horizontal rows of apertures upon said card and saidratchetwheel having an enlarged tooth so that when said tooth is engagedby said pawl said cylinder will be advanced from one card to an adjacentcard with the apertures therein placed in proper alinement with theneedles.

3. In a jacquard head, a hook having an enlarged grate portion and saidgrate portion being cut away so as to allow greater pivoting of saidhook when suspended from a grifi' knife in upper position when actuatedby a needle.

4:. In a jacquard head a hook having a wire portion and a grate portion,said grate portion having a substantial width and being cut away so asto taper to the neck cord securing end to permit of greater pivoting ofsaid hook when actuated by a needle.

5. In a jacquard head for looms, a grate having enlarged hook slots andhooks having cut away portions located in said slots whereby the heightof said head may be considerably reduced.

6. In a jacquard head for looms, a grate having enlarged hook slots,hooks having cut away portions located in said slots,

needles controlling said hooks, a cylinder for actuating said needles ofa diameter substantially less than the width of a standard card and aguide cylinder for the cards located in such position as to render saidcards less likely to be bent when moved by said cylinder.

7 In a jacquard head for looms, a cylinder of substantially smalldiameter so as to make a line contact with the cards, pegs upon saidcylinder cooperating with the peg holes upon said cards, resilient meansencircling said pegs maintaining said cards in close contact with saidcylinder surface and means cooperating with said cylinder to render saidcards less liable to be bent when carried past said needles.

In testimony whereof we have signed our names to this specification.

CHARLES A. FISHER. CLETUS J. KETNER.

